Rotary folding mechanism for printing-presses.



H; P. HUSBY. ROTARY FOLDING MECHANISM FOR PRINTING PRESS APPLICATION I'ILED MAR. 30 1908.

Patentd Sept. 29, 1908'.

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. H. 1 HUSIBY. I ROTARY FOLDING MECHANISM FOR PRINTING PRESSES. v APPLI04IION FILED MAR .',30,190B.' 899,734; Patented Sept.29,1908-.

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APPLICATION FILED MAR. 30,1905.

Patented Sept. 29, 1908.

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UNITED. STATES PATENT o'nnrcn. I

FANS P. HUSBY, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ROTARY FOLDING- MECHANISM FOR PRINTING-PRESSES Specification of Letters Patent.

Patented. Sept. 29, 1908.

Application filed March 30, 1908. Serial No. 424,250.

To all whom it may concern:

Be it known that I, HANS P. HUSBY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Rotary Folding Mechanism for Printing-Presses, of which the following is a specification, reference being. had to'the accompanying drawings.

My invention relates to improvements in rotary folding mechanism for printing presses and particularly to improvements in the mechanism shown and described in Letters Patent of the United States, No. 87 0,964,

granted to me on November 12, 1907, in which the folding blade in a rotary carrier is operated from normal position into operative position and out of operative position into normal position by two moving guides which, while traveling in the same direction with the folding blade, successivelyact upon it to move it into and out of operative position; and its object is to provide new and improved mechanism by which the folding blade may be operated without any blow or violent contact of parts, thereby increasing the speed at which the blade may be operated.

In the accompanying drawings :Figure 1 is an end view of a rotary carrier and accompanying folding blade operating mechanism being a section on line 1-1 of Fig. 3. Fig. 2 is the same. showing the folding blade and operating mechanism in different positions being a section on line 11 of Fig. 3. Fig. 3 is a bottom view showing only a portion of the rotary carrier and showing a portion of the supporting framework. Fig. 4 is an enlarged detail, being a view of the cross-head on the folding blade shaft. Fig. 5 is an enlarged detail, being a view of one end of the crank which performs one of the folding blade moving operations.

Referring to the drawings :6 indicates a rotary carrier of the ordinary construction which is mounted upon a suitable shaft 7 journaled in the folder frame of whichv a part is shown at 8 in Fig. 3. The frame and the mounting and driving of the rotary carrier are of any approved form and construction, and, as my invention does not relate to them, they are not shown, in order not toencumber the drawings with unnecessary features. The rotary carrier is preferably also designed to operate as a cutting cylinder, and to that end is provided with the usual female cutting member 9 which cooperates with a knife 10 on cutting cylinder 11. The rotary carrier is also provided with the usual pins illustrated conventionally at 12, which are adapted to engage the end of the web in any well-known manner.

13 indicates folding blades which are mounted upon shafts 14 j ournaled in suitable bearings, as 15, in the interior of the rotary carrier 6. Upon one end of each shaft 14 is mounted a cross head 16 exterior to the end of the rotary carrier 6. The cross heads 16 are keyed or otherwise secured to the shafts 14. As is best shown in Fig. 4, the cross heads 16 are'provided at each end with a recess 17 which is adapted to engage the pins on the rotary members hereinafter described, and the cross head is of sufficient thickness, as is best shown in Fig. 3, to permit the presence in the recess 17 at the same time from the opposite sides of the cross head of the two operating rollers hereinafter described, one of which is enteringand the other leaving one of said recesses at the same time.

18 indicates a circular guide supported in any suitable manner in the framework and adapted to permit the cross-heads to travel around bearing on its interior surface with the folding blades in normal or inoperative position, which, in the form of my invention shown in the drawings, blades and cross heads at right angles to the diameter of the rotary carrier which intersects the shafts 14. The guide 18 is cut away at its bottom, as is best shown in Fig. 3, to permit the rocking of the cross heads and folding blades as hereinafter described.

19-20 indicate gears which are keyed or otherwise secured to the shaft 7 of the rotary carrier and are, as is best shown in Fig. 3, of the same size and number of teeth. I

21 indicates a gear which is rotatably mounted on the inner end of a stud 22 secured to a portion of the framework 8. The gear 21 is adapted to mesh with the gear 19. The gears 1921 are to each other as two to one, so that the gear 21 is rotated two revolutions for each revolution of the gear 19 and of the rotary carrier 6.

23 indicates a stud,-preferably in the form of a roller, journaled upon a suitable is with the folding pin upon the inner face of the gear 21 in the same vertical plane as the plane of revolution of the cross head 16. The stud or roller 23 is adapted to enter one of the recesses 17 from the outer surface of the cross head 16, as the carrier is rotated in the manner hereinafter described.

24 indicates a gear which iskeyed or otherwise secured to the outer end of a shaft 25. The shaft 25 is journaled in a suitable part of the framework, as 8, and journaled at its inner end in a bracket 8 which is a portion of or suitably connected with the frame 8. The gear 24 meshes with the gear 20, and the gears 20 and 24 are to each other as two to one, so that the gear 24 will make two revolutions for each revolution of the gear 20 and the rotary carrier 6. The shaft 25 extends inwards towards the carrier beyond the guide 18 and carries near its inner end a crank 26.

27 indicates a stud, preferably in the form of a roller journaled upon a suitable pin, as 28, in the outer end of the crank 26 upon the inner surface thereof in position to engage one of the recesses 17 on cross head 16 from the inner surface of said cross head as the parts revolve as herinafter described.

The radii of the gear 21 from its center of revolution to the center of the stud or roller 23, and of the crank arm 26 from the center of its revolution to the center of the stud or roller 27 are the same.

29 indicates folding rollers of the usual form and construction located below the ro tary carrier 6 in the usual manner and operating in the usual manner to receive the paper when tucked between them by the folding blade in the manner hereinafter described and complete the transverse folding of the paper. As these folding rollers are of the usual construction and operation, and may be mounted in the framework and driven in any approved manner, in order not to encumber the drawings with unnecessary parts which would tend to prevent clearness of illustration, I have not she '11 the manner of mounting or driving the fold ing rollers, as it is not believed that that will be necessary for the purposes of this application.

The shafts 22 and 25 above described are located above and slightly to the outside of the folding roller shafts, one upon each side of the central vertical longitudinal plane of the folder and equally distant therefrom, as is shown in Fig. l. The parts rotate in the direction shown by arrows in the several figures,that is to say, the crank shaft 25 with the crank arm 26 and the gear 21 both rotate in the same direction with each other and in the opposite direction to that of the rotary carrier.

The operation is as follows :-The

parts are so mounted and the operation so timed that as the folding blades and cross heads are carried around by the rotation of the rotary carrier,- just as the lead end. of the lower cross head is passing into the open space at the bottom of the guide lb, the roller 28 on the inner surface of the gear 26 will engage the recess 17 in the lead end of the cross head from the outer side of the cross head, as is shown in Fig.- 1, and this engagement will occur while the parts are traveling in the same direction, as the cross head projecting beyond the periphery of the gear 19 will be moved at a. slightly greater surface speed than the surface speed of the gears 19 and 21. As the parts continue their rotation by means of the bearing of the. roller 23 in the recess 17 the cross head It;

-will be rocked into the position shown in solid lines in Fig. 2, rocking with it of course the folding blade and tucking the paper between the folding rollers. Just at this moment, the roller 27 on the crank arm 26 enters the recess 17 in the lead end of the cross head 16 from the inner surface of said cross head, as is shown in Figs. 2 and 3. the roller 23 innnediately leaving the said recess. 'lraveling in the same direction with the movement of the cross head. the engagement of the roller 27 with the recess 17 in what has up to this time been the leading end of the cross head will, by the movement of the rotary carrier, cause the cross head to be rocked out of folding position and delivered in normal position to the guide 18, as is shown in Fig. 2, and this rocking of the cross head back into normal position will be accomplished by the engagement of the roller 27 with the recess while the said roller is traveling in the same direction. As soon as the cross head delivered to the guide in normal position, the recess will be carried out of engagement. with the roller 27. Moving at a speed of two to one with reference to the rotation of the carrier, the engaging rollers will again be in position to engage the cross head upon the opposite side of the rotary carrier as it comes into position, and the folding operation will be repeated.

It will, of course, be understood that a web of paper is delivered in any well-known and approved manner to the rotary carrier, engaged by the pins, and severed crosswise by the cutters at the proper moment of time, also all in the well-known manner. The delivery of the paper is so well understood that it is not shown and the cutters and pins are illustrated only conventionally for the same reason.

I have described the various rotating n1e1nbers as rotating in the direction shown by the arrows, and that is the form in which I prefer to build my mechanism. It is obvious, however, that if the parts rotated in the opposite direction the same result would be obtained except that the roller 27 would engage the lead end of the cross head when the cross head was in normal position and by its engagement move it into folding position, and that the roller 23 would then engage the cross head with the blade in folding position and by its engagement restore. the cross head to normal position, the position of course of the cooperating" cutting cylinder being correspondingly changed.

It will be obvious from the above description of the operation of my mechanism, as the cross head is engaged by the moving roller or stud while the cross head is in normal position and is moved into folding position by the engagement of said roller or stud with the cross head and while the roller and cross head are traveling in the same direction, that the folding blade will be moved out of normal position into folding position without any sudden blow or violent contact of parts. It will also be obvious, inasmuch as the cross head is engaged by the second moving roller or stud while the cross head and folding blade are in folding position and by said engagement'the cross head is moved out of folding position while the said cross head and roller or stud are traveling in the same direction, that the cross head and folding blade will be carried out of folding position into normal position and delivered to the guide in normal position without any sudden blow or violentcontact of parts, and that therefore it will be possiblejto operate the folding blade at a much higher speed than where such blows or violent contacts occur.

What I claim as my invention and desire to secure by Letters Patent is 1. The combination with a rotary carrier, a folding blade carried thereby, and a recessed cross head on said folding blade, of a rotating member, a stud on said rotating member adapted to engage the recess in the lead end of said cross head in normal position from one side of said cross head and while traveling in the same direction with said cross head to move it into folding position, a second rotating member, and a stud carried by said second rotating member and adapted to engage the recess on the lead end of said cross head from the other side thereof while the same is in folding position and while traveling in the same direction therewith to move said cross head and foldguide adapted to bear and, while traveling therewith, to move said cross head and folding blade out of folding position into normal position.

2. The combination with a rotary carrier, a folding blade carried thereby, and a cross head on said folding blade recessed at each end, of a rotating member adapted to rotate in the opposite direction to that of said oarrier,a stud on said rotating member adapted to engage the recess in the lead end of said cross head in normal position from one side of said cross head and, while traveling in the same direction with said cross head, to move it into folding position, a second rotating member adapted to rotate in the same direction as that of said first mentioned rotating member, a stud carried by said second rotating member and adapted to engage the recess on the lead end of said cross head from the other side thereof while the same is in folding position and, while traveling in the same direction therewith, to move said cross folding position into normal position, and a upon said cross head and retain it in normal position while the folding blade is not being operated.

3. The combination with a rotary carrier, a folding blade carried thereby, and a cross head on said folding blade recessed at each end, of a rotating member adapted to rotate in the opposite d rection to that of said carrier, a stud on said rotating member adapted to engage the recess in the lead end of said cross head in normal position from one side of said cross head, and, while traveling in the same direction with said cross head, to move it into folding position, a shaft, means for driving said shaft in the same direction and at the same speed with said rotating member, a crank arm on the inner end of said shaft, an engaging stud on said crank arm adapted to engage the recess on the lead end of said cross head from the other side thereof while the same is in folding position, in the same direction ing blade out of folding position into normal position, and a guide adapted to bear upon said cross head and retain it in normal position while the folding blade is not being operated.

HANS P. HUSBY. Witnesses:

JOSEPH J WALSER, LILLIAN M. OAGNEY.

head and folding blade out of 

